Kotler, Philip. Principles of marketing / Philip Kotler, Gary Armstrong - 11th ed. , Pearson international ed. - Upper Saddle River, N.J. : Pearson Prentice Hall, c2006 - 611 p. : col. ill. Includes bibliographical references and index ISBN: 0131968793 Subjects--Topical Terms: MARKETING LC Class. No.: HF5415 / K674P 2006